Mercurial > hg > xemacs-beta
annotate lisp/multicast.el @ 5157:1fae11d56ad2
redo memory-usage mechanism, add way of dynamically initializing Lisp objects
-------------------- ChangeLog entries follow: --------------------
lisp/ChangeLog addition:
2010-03-18 Ben Wing <ben@xemacs.org>
* diagnose.el (show-memory-usage):
Rewrite to take into account API changes in memory-usage functions.
src/ChangeLog addition:
2010-03-18 Ben Wing <ben@xemacs.org>
* alloc.c:
* alloc.c (disksave_object_finalization_1):
* alloc.c (lisp_object_storage_size):
* alloc.c (listu):
* alloc.c (listn):
* alloc.c (Fobject_memory_usage_stats):
* alloc.c (compute_memusage_stats_length):
* alloc.c (Fobject_memory_usage):
* alloc.c (Ftotal_object_memory_usage):
* alloc.c (malloced_storage_size):
* alloc.c (common_init_alloc_early):
* alloc.c (reinit_alloc_objects_early):
* alloc.c (reinit_alloc_early):
* alloc.c (init_alloc_once_early):
* alloc.c (syms_of_alloc):
* alloc.c (reinit_vars_of_alloc):
* buffer.c:
* buffer.c (struct buffer_stats):
* buffer.c (compute_buffer_text_usage):
* buffer.c (compute_buffer_usage):
* buffer.c (buffer_memory_usage):
* buffer.c (buffer_objects_create):
* buffer.c (syms_of_buffer):
* buffer.c (vars_of_buffer):
* console-impl.h (struct console_methods):
* dynarr.c (Dynarr_memory_usage):
* emacs.c (main_1):
* events.c (clear_event_resource):
* extents.c:
* extents.c (compute_buffer_extent_usage):
* extents.c (extent_objects_create):
* extents.h:
* faces.c:
* faces.c (compute_face_cachel_usage):
* faces.c (face_objects_create):
* faces.h:
* general-slots.h:
* glyphs.c:
* glyphs.c (compute_glyph_cachel_usage):
* glyphs.c (glyph_objects_create):
* glyphs.h:
* lisp.h:
* lisp.h (struct usage_stats):
* lrecord.h:
* lrecord.h (enum lrecord_type):
* lrecord.h (struct lrecord_implementation):
* lrecord.h (MC_ALLOC_CALL_FINALIZER_FOR_DISKSAVE):
* lrecord.h (DEFINE_DUMPABLE_LISP_OBJECT):
* lrecord.h (DEFINE_DUMPABLE_SIZABLE_LISP_OBJECT):
* lrecord.h (DEFINE_DUMPABLE_FROB_BLOCK_LISP_OBJECT):
* lrecord.h (DEFINE_DUMPABLE_FROB_BLOCK_SIZABLE_LISP_OBJECT):
* lrecord.h (DEFINE_DUMPABLE_INTERNAL_LISP_OBJECT):
* lrecord.h (DEFINE_DUMPABLE_SIZABLE_INTERNAL_LISP_OBJECT):
* lrecord.h (DEFINE_NODUMP_LISP_OBJECT):
* lrecord.h (DEFINE_NODUMP_SIZABLE_LISP_OBJECT):
* lrecord.h (DEFINE_NODUMP_FROB_BLOCK_LISP_OBJECT):
* lrecord.h (DEFINE_NODUMP_FROB_BLOCK_SIZABLE_LISP_OBJECT):
* lrecord.h (DEFINE_NODUMP_INTERNAL_LISP_OBJECT):
* lrecord.h (DEFINE_NODUMP_SIZABLE_INTERNAL_LISP_OBJECT):
* lrecord.h (MAKE_LISP_OBJECT):
* lrecord.h (DEFINE_DUMPABLE_MODULE_LISP_OBJECT):
* lrecord.h (DEFINE_DUMPABLE_MODULE_SIZABLE_LISP_OBJECT):
* lrecord.h (DEFINE_NODUMP_MODULE_LISP_OBJECT):
* lrecord.h (DEFINE_NODUMP_MODULE_SIZABLE_LISP_OBJECT):
* lrecord.h (MAKE_MODULE_LISP_OBJECT):
* lrecord.h (INIT_LISP_OBJECT):
* lrecord.h (INIT_MODULE_LISP_OBJECT):
* lrecord.h (UNDEF_LISP_OBJECT):
* lrecord.h (UNDEF_MODULE_LISP_OBJECT):
* lrecord.h (DECLARE_LISP_OBJECT):
* lrecord.h (DECLARE_MODULE_API_LISP_OBJECT):
* lrecord.h (DECLARE_MODULE_LISP_OBJECT):
* lstream.c:
* lstream.c (syms_of_lstream):
* lstream.c (vars_of_lstream):
* marker.c:
* marker.c (compute_buffer_marker_usage):
* mc-alloc.c (mc_alloced_storage_size):
* mc-alloc.h:
* mule-charset.c:
* mule-charset.c (struct charset_stats):
* mule-charset.c (compute_charset_usage):
* mule-charset.c (charset_memory_usage):
* mule-charset.c (mule_charset_objects_create):
* mule-charset.c (syms_of_mule_charset):
* mule-charset.c (vars_of_mule_charset):
* redisplay.c:
* redisplay.c (compute_rune_dynarr_usage):
* redisplay.c (compute_display_block_dynarr_usage):
* redisplay.c (compute_glyph_block_dynarr_usage):
* redisplay.c (compute_display_line_dynarr_usage):
* redisplay.c (compute_line_start_cache_dynarr_usage):
* redisplay.h:
* scrollbar-gtk.c (gtk_compute_scrollbar_instance_usage):
* scrollbar-msw.c (mswindows_compute_scrollbar_instance_usage):
* scrollbar-x.c (x_compute_scrollbar_instance_usage):
* scrollbar.c (compute_scrollbar_instance_usage):
* scrollbar.h:
* symbols.c:
* symbols.c (reinit_symbol_objects_early):
* symbols.c (init_symbols_once_early):
* symbols.c (reinit_symbols_early):
* symbols.c (defsymbol_massage_name_1):
* symsinit.h:
* ui-gtk.c:
* ui-gtk.c (emacs_gtk_object_getprop):
* ui-gtk.c (emacs_gtk_object_putprop):
* ui-gtk.c (ui_gtk_objects_create):
* unicode.c (compute_from_unicode_table_size_1):
* unicode.c (compute_to_unicode_table_size_1):
* unicode.c (compute_from_unicode_table_size):
* unicode.c (compute_to_unicode_table_size):
* window.c:
* window.c (struct window_stats):
* window.c (compute_window_mirror_usage):
* window.c (compute_window_usage):
* window.c (window_memory_usage):
* window.c (window_objects_create):
* window.c (syms_of_window):
* window.c (vars_of_window):
* window.h:
Redo memory-usage mechanism, make it general; add way of dynamically
initializing Lisp object types -- OBJECT_HAS_METHOD(), similar to
CONSOLE_HAS_METHOD().
(1) Create OBJECT_HAS_METHOD(), OBJECT_HAS_PROPERTY() etc. for
specifying that a Lisp object type has a particular method or
property. Call such methods with OBJECT_METH, MAYBE_OBJECT_METH,
OBJECT_METH_OR_GIVEN; retrieve properties with OBJECT_PROPERTY.
Methods that formerly required a DEFINE_*GENERAL_LISP_OBJECT() to
specify them (getprop, putprop, remprop, plist, disksave) now
instead use the dynamic-method mechanism. The main benefit of
this is that new methods or properties can be added without
requiring that the declaration statements of all existing methods
be modified. We have to make the `struct lrecord_implementation'
non-const, but I don't think this should have any effect on speed --
the only possible method that's really speed-critical is the
mark method, and we already extract those out into a separate
(non-const) array for increased cache locality.
Object methods need to be reinitialized after pdump, so we put
them in separate functions such as face_objects_create(),
extent_objects_create() and call them appropriately from emacs.c
The only current object property (`memusage_stats_list') that
objects can specify is a Lisp object and gets staticpro()ed so it
only needs to be set during dump time, but because it references
symbols that might not exist in a syms_of_() function, we
initialize it in vars_of_(). There is also an object property
(`num_extra_memusage_stats') that is automatically initialized based
on `memusage_stats_list'; we do that in reinit_vars_of_alloc(),
which is called after all vars_of_() functions are called.
`disksaver' method was renamed `disksave' to correspond with the
name normally given to the function (e.g. disksave_lstream()).
(2) Generalize the memory-usage mechanism in `buffer-memory-usage',
`window-memory-usage', `charset-memory-usage' into an object-type-
specific mechanism called by a single function
`object-memory-usage'. (Former function `object-memory-usage'
renamed to `total-object-memory-usage'). Generalize the mechanism
of different "slices" so that we can have different "classes" of
memory described and different "slices" onto each class; `t'
separates classes, `nil' separates slices. Currently we have
three classes defined: the memory of an object itself,
non-Lisp-object memory associated with the object (e.g. arrays or
dynarrs stored as fields in the object), and Lisp-object memory
associated with the object (other internal Lisp objects stored in
the object). This isn't completely finished yet and we might need
to further separate the "other internal Lisp objects" class into
two classes.
The memory-usage mechanism uses a `struct usage_stats' (renamed
from `struct overhead_stats') to describe a malloc-view onto a set
of allocated memory (listing how much was requested and various
types of overhead) and a more general `struct generic_usage_stats'
(with a `struct usage_stats' in it) to hold all statistics about
object memory. `struct generic_usage_stats' contains an array of
32 Bytecounts, which are statistics of unspecified semantics. The
intention is that individual types declare a corresponding struct
(e.g. `struct window_stats') with the same structure but with
specific fields in place of the array, corresponding to specific
statistics. The number of such statistics is an object property
computed from the list of tags (Lisp symbols describing the
statistics) stored in `memusage_stats_list'. The idea here is to
allow particular object types to customize the number and
semantics of the statistics where completely avoiding consing.
This doesn't matter so much yet, but the intention is to have the
memory usage of all objects computed at the end of GC, at the same
time as other statistics are currently computed. The values for
all statistics for a single type would be added up to compute
aggregate values for all objects of a specific type. To make this
efficient, we can't allow any memory allocation at all.
(3) Create some additional functions for creating lists that
specify the elements directly as args rather than indirectly through
an array: listn() (number of args given), listu() (list terminated
by Qunbound).
(4) Delete a bit of remaining unused C window_config stuff, also
unused lrecord_type_popup_data.
| author | Ben Wing <ben@xemacs.org> |
|---|---|
| date | Thu, 18 Mar 2010 10:50:06 -0500 |
| parents | 2b6fa2618f76 |
| children | 9058351b0236 |
| rev | line source |
|---|---|
| 261 | 1 ;;; multicast.el --- lisp frontend for multicast connections in XEmacs |
| 2 | |
| 404 | 3 ;; Copyright (C) 1997-2000 Didier Verna. |
| 853 | 4 ;; Copyright (C) 2002 Ben Wing. |
| 261 | 5 |
| 404 | 6 ;; Author: Didier Verna <didier@xemacs.org> |
| 7 ;; Maintainer: Didier Verna <didier@xemacs.org> | |
| 8 ;; Created: Thu Dec 4 16:37:39 1997 | |
| 261 | 9 ;; Last Revision: Mon Jan 19 19:10:50 1998 |
| 10 ;; Current Version: 0.4 | |
| 11 ;; Keywords: dumped comm processes | |
| 12 | |
| 404 | 13 ;; This file is part of XEmacs. |
| 261 | 14 |
| 15 ;; XEmacs is free software; you can redistribute it and/or modify | |
| 16 ;; it under the terms of the GNU General Public License as published by | |
| 17 ;; the Free Software Foundation; either version 2 of the License, or | |
| 404 | 18 ;; (at your option) any later version. |
| 261 | 19 |
| 20 ;; XEmacs is distributed in the hope that it will be useful, | |
| 21 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 22 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 404 | 23 ;; GNU General Public License for more details. |
| 261 | 24 |
| 25 ;; You should have received a copy of the GNU General Public License | |
| 26 ;; along with this program; if not, write to the Free Software | |
| 27 ;; Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
| 28 | |
| 29 | |
| 30 ;;; Commentary: | |
| 31 | |
| 32 ;; This file just contains a lisp frontend to the internal function | |
| 33 ;; open-multicast-group-internal written in C and belonging to process.c | |
| 34 ;; Well, nothing much to say about it ... read the doc string. | |
| 35 | |
| 36 | |
| 37 ;;; Change Log: | |
| 38 | |
| 39 ;; Rev. of Mon Jan 19 19:04:44 1998 : packaging cleanup | |
| 40 ;; Rev. of Thu Dec 11 13:54:26 1997 : updated the docstring | |
| 41 ;; Rev. of Mon Dec 8 15:28:47 1997 : Improved the doc string | |
| 42 ;; Rev. of Thu Dec 4 16:38:09 1997 : Initial Version. | |
| 43 | |
| 44 | |
| 45 ;;; Code: | |
| 46 | |
| 47 (defun open-multicast-group (name buffer address) | |
| 48 "Open a multicast connection on the specified address. | |
| 444 | 49 Returns a process object to represent the connection. |
| 261 | 50 Input and output work as for subprocesses; `delete-process' closes it. |
| 51 NAME is a name for the process. It is modified if necessary to make it unique. | |
| 52 BUFFER is the buffer (or buffer-name) to associate with the process. | |
| 53 Process output goes at the end of that buffer, unless you specify an output | |
| 54 stream or filter function to handle the output. | |
| 55 BUFFER may be also nil, meaning that this process is not associated with any | |
| 853 | 56 buffer. |
| 261 | 57 ADDRESS specifies a standard multicast address \"dest/port/ttl\": |
| 58 dest is an internet address between 224.0.0.0 and 239.255.255.255 | |
| 59 port is a communication port like in traditional unicast | |
| 60 ttl is the time-to-live (15 for site, 63 for region and 127 for world). | |
| 61 | |
| 62 WARNING: it is *strongly* recommended to avoid using groups beginning with | |
| 404 | 63 224 or 239. Such groups are considered 'admin' groups, and may |
| 853 | 64 behave in a surprising way ... |
| 65 | |
| 66 The read/write coding systems used for process I/O on the process are | |
| 67 determined as follows: | |
| 68 | |
| 69 1. `coding-system-for-read', `coding-system-for-write', if non-nil. | |
| 70 (Intended as a temporary overriding mechanism for use by Lisp | |
| 71 code.) | |
| 72 2. The matching value for the port from `network-coding-system-alist', | |
| 73 if any, and if non-nil. The value may be either a single coding | |
| 74 system, used for both read and write; or a cons of read/write; or a | |
| 75 function, called to get one of the other two values. | |
| 76 3. The value of `default-network-coding-system', which should be a cons | |
| 77 of read/write coding systems, if the values are non-nil. | |
| 78 4. The coding system `undecided' for read, and `raw-text' for write. | |
| 79 | |
| 80 Note that the processes of determining the read and write coding systems | |
| 81 proceed essentially independently one from the other, as in `start-process'. | |
| 82 | |
| 83 You can change the coding systems later on using | |
| 84 `set-process-coding-system', `set-process-input-coding-system', or | |
| 85 `set-process-output-coding-system'." | |
| 261 | 86 (let (dest port ttl) |
| 87 ;; We check only the general form of the multicast address. | |
| 88 ;; The rest will be handled by the internal function. | |
| 89 (string-match "^\\([0-9\\.]+\\)/\\([0-9]+\\)/\\([0-9]+\\)$" address) | |
| 90 (and (not (and (= (match-beginning 0) 0) | |
| 91 (= (match-end 0) (length address)))) | |
| 92 (error "malformed multicast address: %s" address)) | |
| 93 (and (not (setq dest (match-string 1 address))) | |
| 94 (error "invalid destination specification.")) | |
| 95 (and (= 0 (setq port (string-to-int (match-string 2 address)))) | |
| 96 (error "invalid port specification.")) | |
| 97 (and (= 0 (setq ttl (string-to-int (match-string 3 address)))) | |
| 98 (error "invalid ttl specification.")) | |
| 853 | 99 (let (cs-r cs-w) |
| 100 (let (ret) | |
| 101 (catch 'found | |
| 102 (let ((alist network-coding-system-alist) | |
| 103 (case-fold-search nil) | |
| 104 pattern) | |
| 105 (while alist | |
| 106 (setq pattern (car (car alist))) | |
| 107 (and | |
| 108 (cond ((numberp pattern) | |
| 109 (and (numberp port) | |
| 110 (eq pattern port))) | |
| 111 ((stringp pattern) | |
| 112 (or (and (stringp port) | |
| 113 (string-match pattern port)) | |
| 114 (and (numberp port) | |
| 115 (string-match pattern | |
| 116 (number-to-string port)))))) | |
| 117 (throw 'found (setq ret (cdr (car alist))))) | |
| 118 (setq alist (cdr alist)) | |
| 119 ))) | |
| 120 (if (functionp ret) | |
| 121 (setq ret (funcall ret 'open-multicast-group port))) | |
| 122 (cond ((consp ret) | |
| 123 (setq cs-r (car ret) | |
| 124 cs-w (cdr ret))) | |
| 125 ((and ret (find-coding-system ret)) | |
| 126 (setq cs-r ret | |
| 127 cs-w ret)))) | |
| 128 (let ((coding-system-for-read | |
| 129 (or coding-system-for-read cs-r | |
| 130 (car default-network-coding-system) | |
| 131 'undecided)) | |
| 132 (coding-system-for-write | |
| 133 (or coding-system-for-write cs-w | |
| 134 (cdr default-network-coding-system) | |
| 135 'raw-text))) | |
| 136 (declare-fboundp (open-multicast-group-internal name buffer dest port | |
| 137 ttl)))))) | |
| 404 | 138 |
| 261 | 139 ;;; multicast.el ends here |